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In the Linux kernel, the following vulnerability has been resolved: bpf: Propagate error from visit_tailcall_insn Commit e40f5a6bf88a ("bpf: correct stack liveness for tail calls") added visit_tailcall_insn() but did not check its return value.
Upstream advisory: https://lore.kernel.org/linux-cve-announce/2026071934-CVE-2026-63864-e441@gregkh/T